public class Demo37 {
    private static int result=0;
    public static void main(String[] args) throws InterruptedException {
        Thread t=new Thread(new Runnable() {
            @Override
            public void run() {
                int sum=0;
                for (int i = 0; i <=1000 ; i++) {
                    sum+=i;
                }
                result=sum;
            }
        });
        t.start();
        t.join();
        System.out.println(result);
    }
}
